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61results about How to "Affect judgment" patented technology

Method for detecting calibration board

A method for detecting a calibration board includes providing a vehicle-mounted panoramic camera and a first type of calibration board, wherein an upper surface of that first type of calibration boardis provided with a mark point; acquiring an initial image captured by a vehicle-mounted panoramic camera; identifying a mark dot in the initial image and overlaying the first mark block at the position where the mark dot is identified as the mark dot; judging whether the first marker block covers the marker dot, if the first marker block covers the marker dot, then, obtaining the center coordinates of the mark points to determine the initial external parameters of the vehicle-mounted panoramic camera; if the first mark block does not cover the mark points, adjusting the surrounding environment of the first type calibration board, obtaining the images captured by the vehicle-mounted panoramic camera again, and carrying out the next cycle until the first mark block covers the mark points. The method is convenient for the operator to judge whether the identification of the position of the mark dot is accurate or not and to conveniently find the disturbing object caused by wrong identification in the environment, which is helpful to improve the calibration efficiency, save the calibration time and improve the calibration precision.
Owner:上海商泰汽车信息系统有限公司

Railway wagon floor damage fault identification method based on improved SLIC method

The invention discloses a railway wagon floor damage fault identification method based on an improved SLIC method, and belongs to the technical field of railway wagon floor damage fault identification. According to the method, the problems of low detection efficiency and high detection cost of the existing railway freight car floor damage fault identification method are solved. According to the method, the original collected images are cut and spliced, the spliced images highlight the recognition area, and the aspect ratio is more suitable for image segmentation; secondly, optimizing the original SLIC algorithm, and modifying selection of seed points from grid-based selection to selection based on ROI (region of interest) and gradient information, so that the segmentation effect of the algorithm in the ROI is improved, and influence on judgment of an identification result due to poor segmentation effect is avoided; and finally, screening the segmented regions, and further classifying the damaged regions and easily confused images such as rainwater, mud stains and the like by adopting an SVM classifier, thereby reducing false alarm. The method can be applied to railway wagon floor damage fault identification.
Owner:HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD

CT scanning auxiliary method based on image detection, computer readable storage medium and CT scanning device

ActiveCN111260647AAvoid the problem of poor image quality of CT scan reconstructionAvoid acceptingImage enhancementImage analysisHuman bodyRadiology
The invention provides a CT scanning auxiliary method based on image detection, a computer readable storage medium and a CT scanning device, and relates to the technical field of CT scanning. The method comprises the steps of: in the scanning process, collecting a body position image of a patient in real time; inputting the acquired body position image into a constructed key point detection model,and extracting coordinates of human body key points in the body position image through the key point detection model; importing the coordinates of the key points in the body position images acquiredthis time and the coordinates of the key points in the body position images acquired last time into a pre-constructed image domain similarity index calculation model, and calculating the similarity ofthe two body position images; and finally, judging whether the patient is subjected to positioning change or not in the scanning process according to a threshold condition. If movement of the patientis detected, scanning can be interrupted, and the patient is prevented from receiving unnecessary doses. Patient positioning changes can be found in time in the CT scanning process, the operation difficulty of technicians is lowered, and dependence on the operation level of CT equipment is reduced.
Owner:NANJING ANKE MEDICAL TECH CO LTD

Urban underground pipeline repairing device

The invention belongs to the field of underground pipeline machining equipment, and particularly relates to an urban underground pipeline repairing device. The urban underground pipeline repairing device comprises a vehicle body, a cleaning mechanism is arranged on the vehicle body, a rotating part is rotatably connected to the other side of the vehicle body, a plurality of material spraying mechanisms and curing mechanisms which are evenly distributed are arranged on the rotating part, the multiple material spraying mechanisms and the curing mechanisms are distributed on the rotating part atintervals, the vehicle body moves in the pipeline through rolling wheel mechanisms, and the vehicle body is provided with a detection mechanism capable of detecting the pipeline. According to the urban underground pipeline repairing device, repairing glue can be continuously sprayed out of the material spraying mechanism in the rotating process of a rotating frame, the repairing glue can be evenlytrowelled in the pipeline through rollers, the repairing glue can be solidified in the rotating process of the rotating part, and therefore in the pipeline repairing process, the repairing glue can be overlapped layer by layer; and in this way, the drying efficiency and the drying effect of the repairing glue can be improved.
Owner:胡艳梅

Special-shaped part polishing device for machining

The invention discloses a special-shaped part polishing device for machining. The device comprises a base; a disc is fixedly connected to the upper end of the base, a circular groove is formed in theupper end of the disc, a plurality of lead screws are uniformly and rotatably connected to the inner wall of the circular groove, an annular groove is formed in the upper end of the disc, and a driving device for driving the plurality of lead screws to rotate synchronously is installed in the annular groove. According to the special-shaped part polishing device, annular racks, gears, hand wheels,the screw rods, sliding blocks, connecting rods and arc-shaped clamping plates are arranged, the hand wheels are rotated to enable the screw rods rotatably connected to the inner wall of the circulargroove to rotate synchronously, the special-shaped part is clamped in all sides, the problem that the position of the special-shaped part is shifted during polishing of the special-shaped part, causing polishing errors of the special-shaped part to influence the appearance and the use of the special-shaped part is avoided, scraps in the polishing process of the special-shaped part can be sucked through a fan, and the judgment of the polishing position of the special-shaped part is prevented from being influenced by the scraps.
Owner:合肥锦鑫隆机械制造有限公司

Ceramic injection mould optimal design method and ceramic injection mould

The invention discloses a ceramic injection mould optimal design method and a ceramic injection mould. The optimal design method includes the following steps that a required ceramic injection mould model is designed through mould design software to serve as an original ceramic injection mould needing to be optimized; a 3D mould model of the original ceramic injection mould is guided out and guided into simulation software; an initial injection moudling channel allowing injection moulding materials to flow into a cavity is built in the 3D model; the 3D model is subjected to ceramic injection moulding forming process simulation through simulation software, and the difference of injection moudling time required by injection moulding of two ceramic products is recorded; whether the injection moulding time is within a preset time range is judged, and the injection moulding channel built in the original ceramic injection mould is improved till injection moulding time difference is within a preset time range. The software is used for injection moulding process simulation, cost in the mould development process is greatly reduced, and mould development and design efficiency is improved. The precision and the quality of the ceramic products are guaranteed, and meanwhile waste of ceramic materials is reduced.
Owner:SHENZHEN SUNTECH ADVANCED CERAMICS

Pedestrian road-crossing assisting device

The invention provides a pedestrian road-crossing assisting device, and relates to the technical field of traffic assisting tools. The pedestrian road-crossing assisting device is used for being arranged at a traffic intersection and comprises a supporting mechanism, a movable mechanism, a sensing mechanism and a recognition mechanism; the supporting mechanism is used for bearing pedestrians, andthe movable mechanism is arranged on the supporting mechanism; the movable mechanism comprises a driving controller, a driving motor and multiple idler wheels; the driving controller is connected withthe driving motor and the recognition mechanism separately, the recognition mechanism is used for recognizing a signal of a traffic signal lamp and transmitting signal data to the driving controller,and when the traffic signal lamp is a green lamp, the driving controller drives the driving motor to be started; the sensing motor is used for making the movable mechanism reciprocate along a presetpath. Through the arrangement of the pedestrian road-crossing assisting device, it can be guaranteed that pedestrians safely pass through the intersection within a schedule time; the behaviors of thepedestrians of chasing, quarreling and noisy fighting on a road or stopping during walking can also be prevented, judgment force of vehicle drivers is prevented from being influenced, and thus people's travel safety is improved.
Owner:TIANJIN AGRICULTURE COLLEGE

Clock type English teaching aid

The invention provides a clock type English teaching aid comprising a base. The top of the base is connected with a circular shell. The inner wall of the circular shell is connected with a disc; the outer wall of the disc is connected with a circular block; the bottom wall of the circular block is fixedly connected with the top wall of the disc; the top wall of the circular block and the outer wall of the circular shell are located on the same horizontal plane. 26 letters are arranged on the outer walls of the circular block and the circular shell; a fixed shaft is fixedly connected into the circular block, penetrates the circular block and extends outwards; the outer wall of the fixed shaft is connected with a telescopic pointer and a movable block; the telescopic pointer is movably abutted against the movable block; the end, away from the circular block, of the fixed shaft is in threaded connection with a conical block; and a first elastic element is connected between the inner wallof the conical block and the movable block. According to the clock type English teaching aid, rotation of the pointers can be controlled; and when the push rod is not pushed, the moving block is abutted against the pointers to prevent the pointers from rotating; when the push rod is pushed, the pointers are loosened by extruding the movable block.
Owner:TANGSHAN NORMAL UNIV

Oil spill prevention device of oil-electric hybrid unmanned aerial vehicle

The invention discloses an oil spill prevention device of an oil-electric hybrid unmanned aerial vehicle. The device comprises an oil tank, the left side of the top of the oil tank communicates with arefueling pipe, the right side of the oil tank is fixedly connected with an auxiliary oil tank, the right side of the auxiliary oil tank is fixedly connected with a transparent observation window, the top of the right side of the oil tank communicates with an oil overflow pipe, and the end, away from the oil tank, of the oil overflow pipe penetrates the auxiliary oil tank and extends into the auxiliary oil tank. The invention relates to the technical field of unmanned aerial vehicles. According to the oil spill prevention device of the oil-electric hybrid unmanned aerial vehicle, in the refueling process, overflowed fuel oil enters the auxiliary oil tank, an operator stops refueling when seeing that the fuel oil reaches the auxiliary oil tank through the transparent observation window; inaddition, the capacity of the auxiliary oil tank is reasonably designed according to the reaction time of general personnel and the expansion coefficient of liquid under the natural temperature difference, the use requirement is met, a handle is pulled up and down, a sponge wiper can be driven to move up and down, the transparent observation window is wiped clean, oil contamination is prevented from influencing judgment of operators, and reliability is improved.
Owner:广东万虹科技有限公司
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